Cisco 2- and 4-Port ISDN BRI S/T Network Interface Modules Data Sheet
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Integrated Services Routers
2- and 4-Port ISDN BRI S/T
Network Interface Modules Data Sheet
Product overview
The Cisco® 4000 Series Integrated Services Routers (ISRs) offer a wide variety of WAN connectivity modules to accommodate the range of application needs in customer networks. The Cisco 2- and 4-Port ISDN BRI S/T Network Interface Modules (NIMs) offer investment protection by providing data connectivity to legacy ISDN networks for the 4000 Series ISRs (Figure 1).
Integration
The 2- and 4-port ISDN BRI NIMs enable branches to use legacy ISDN Basic Rate Interface (BRI) networks for data connections. Because they support industry-standard ISDN dialup capabilities, these modules can be deployed as the main WAN connection over ISDN BRI, dial backup over ISDN BRI, or a combination of the two. Each physical interface supports data traffic over two 64-kbps B channels, which can be automatically bundled together using Multi-Link Point-to-Point Protocol (MLPPP).
Investment protection
The 2- and 4-port ISDN BRI NIMs provide a cost-effective ISDN Dial-on-Demand Routing (DDR) solution for use with legacy ISDN networks. These NIMs are supported on the Cisco 4000 Series ISRs and uphold Cisco's commitment to providing customers with maximum flexibility and investment protection.
Because the same cards can be used on all Cisco 4000 Series ISRs, the number of stocking units can be reduced and the NIMs can be redeployed from one platform to another.
Shared features with Cisco ISR G2 Series ISDN modules
The Cisco 2- and 4-port ISDN BRI NIMs offer many of the same features as the ISR G2 Series ISDN BRI modules and can thus be smoothly deployed without any additional training (Table 1).
A new feature is full online insertion and removal (OIR or hot swap), which was introduced with the 4000 Series NIMs.
Table 1. Comparison of the 2- and 4-port ISDN BRI NIMs with the ISR G2 Series ISDN BRI modules
| Feature type |
Feature |
ISR G2 Series ISDN BRI NIMs |
4000 Series ISDN BRI NIMs |
| Leased line |
64K mode |
Yes |
Yes |
| 128K mode |
Yes |
Yes |
|
| Backup for primary |
Backup for primary interface |
Yes |
Yes |
| Dialer watch group and watch list |
Yes |
Yes |
|
| Dialer map |
Dialer map |
Yes |
Yes |
| Encapsulation |
High-level Data Link Control (HDLC) |
Yes |
Yes |
| Point-to-Point Protocol (PPP) |
Yes |
Yes |
|
| Frame relay |
Yes |
No |
|
| X.25 |
Yes |
No |
|
| Link Access Procedure on the D channel (LAPD) |
Yes |
No |
|
| Legacy DDR |
Dialer string on D channel |
Yes |
No (*1) |
| Dialer rotary-group DDR |
Yes |
Yes |
|
| Dialer pool/profile DDR |
Yes |
Yes |
|
| Maximum Transmission Unit (MTU) |
MTU change |
Yes |
Yes |
| Jumbo packets |
Yes |
Yes |
|
| MLPPP |
MLPPP in rotary-group case |
Yes |
Yes |
| MLPPP in dialer pool case |
Yes |
Yes |
|
| Bridging |
Bridge over ISDN port |
Yes |
No (*2) |
| Snapshot routing |
|
Yes |
No |
| Clocking |
Independent clocking |
Yes |
Yes |
| Quality of Service (QoS) |
Interface-level QoS for ISDN |
Yes |
Yes |
| Dial-in and dial-out |
Dial-in and dial-out for Primary Rate Interface (PRI) |
Yes |
Yes |
| Network Management System (NMS) |
ISDN MIB support |
Yes |
Yes |
| Module OIR |
Module hot-swap support |
No |
Yes |
| PPP |
PPP callback |
Yes |
Yes |
| PPP authentication – Challenge Handshake Authentication Protocol (CHAP) |
Yes |
Yes |
|
| PPP authentication – Password Authentication Protocol (PAP) |
Yes |
Yes |
CLI comparison to Cisco ISR G2 Series for configuring ISDN modules
There is no noticeable difference in the ISDN command-line interface between Cisco IOS® XE and Cisco IOS M&T (Cisco IOS Classic).
Dialer features
Table 2 lists supported dialer features for the 2- and 4-port ISDN BRI NIMs.
Table 2. Supported dialer features
| Supported dialer features |
||
| Dialer list with ACL |
Dialer caller |
Dialer fast-idle |
| Dialer group |
Dialer called |
Dialer priority |
| Dialer in-band |
Dialer callback |
Dialer redial interval |
| Dialer string |
Dialer enable-timeout |
Dialer redial attempts |
| Dialer map |
Dialer idle-timeout |
Dialer route watch |
Switch types
Table 3 lists supported and unsupported ISDN switch types for the 2- and 4-port ISDN BRI NIMs.
Table 3. Supported and unsupported ISDN switch types for BRI
| Supported |
Unsupported |
| basic-1tr6 |
basic-dms100 |
| basic-5ess |
basic-ni |
| basic-net3 |
|
| basic-qsig |
|
| basic-ts013 |
|
| ntt |
|
Product specifications
Models
● 2 or 4 ISDN BRI ports with S/T interface:
◦ 2 port: NIM-2BRI-S/T (NIM-2B-S/T)
◦ 4 port: NIM-4BRI-S/T (NIM-4B-S/T)
● Use RJ-45 connectors
Platform support
Table 4 lists platform support for the 2- and 4-port ISDN BRI NIMs. Table 5 lists the maximum number of NIMs per platform.
Table 4. Platform support
Table 5. Maximum number of 2- and 4-port ISDN BRI NIMs per platform
| Platform |
|
| Cisco 4431 |
3 |
| Cisco 4351 and 4451 |
5 (3x NIM slots plus 2 SM-X NIM adapters)* |
Software requirements
Table 6 lists the minimum Cisco IOS Software release required for the supporting platforms.
Table 6. Minimum Cisco IOS Software release
| Platform |
||
Ordering information
Table 7 lists product ordering information for the 2- and 4-port ISDN BRI NIMs.
Table 7. Ordering information
| Product number |
|
| NIM-4BRI-S/T (NIM-4B-S/T) |
4-port ISDN BRI S/T network interface module |
Hardware specifications
Table 8 lists the hardware specifications for the 2- and 4-port ISDN BRI NIMs.
Table 8. Hardware specifications
| Specification |
|
| Weight |
● 2-port NIM: 0.42 lb (191 g)
● 4-port NIM: 0.44 lb (200 g)
|
|
● Storage temperature: -4° to 149°F (-20° to 65°C)
● Relative humidity: 10% to 90%, noncondensing
|
Safety, EMC, telecom, network homologation, power, environmental requirements, and regulatory approvals
When installed in a Cisco 4000 Series ISR, the 2- and 4-port ISDN BRI NIMs do not change the standards (safety, EMC, telecom, network homologation, power, environmental requirements, and regulatory approvals) of the router itself. Refer to the Cisco 4000 Series ISRs data sheet for additional information about mechanical, environmental, and agency certifications.
● Cisco 4000 Series ISRs:
https://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/datasheet-c78-732542.html?cachemode=refresh
Country support
Contact your local Cisco representative for country-specific approval status, or visit https://tools.cisco.com/cse/prdapp/jsp/externalsearch.do?action=externalsearch&page=EXTERNAL_SEARCH.
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